2020-01 Performance Audit Report: Contingency Plans at County of Hawai'i's Department of Water Supply

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• Stage 4: Extreme Water Supply Warning Criteria: Water supply shortages (local or imported) are expected to worsen, or the District is mandated by a state or federal regulatory agency with jurisdiction over the District to reduce water use... If Stage 4 is the result of an extended drought and has been triggered by Condition No. 1 of Section 2 of this WSC Plan, The District will explore increased incentives for implementation of demand management measures that will have immediate and substantial impacts on water demands... More severe restrictions on non-essential outdoor water use will be implemented... Significant Allocation Surcharges, monetary assessments, and/or fines for non-compliance of such restrictions will be imposed. • Stage 5 — Water Supply Emergency Criteria: Water supply shortages (local or imported) are expected to worsen, or the District is mandated by a state or federal regulatory agency with jurisdiction over the District to reduce water use... or may be as a result of an emergency situation resulting in the inability of the District's water distribution system to deliver all of the District's supply. Restrictions on all non-essential outdoor and indoor water use will also be implemented. The District will work to achieve an appropriate balance of water budget decreases to all customer classes as water shortages increase. Allocation Surcharges, monetary assessments and/or fines for non-compliance of such restrictions will be imposed. ➢ San Diego County Water Authority Water Shortage Contingency Plan August 2017: The Water Authority's Water Shortage Contingency Plan (WSCP) includes six distinct levels of potential shortage, along with "normal" conditions when no out - of -the -ordinary water -saving actions are called for. It also includes a "catastrophic" condition when extreme events prompt emergency -oriented water - saving measures to preserve supplies for health and safety. It's possible for the desired scope of water -saving actions or outcomes to vary widely at each level of the plan. In addition, their plan contains several potential communication strategies and tactics that can be deployed to help the Water Authority successfully implement each level of the WSCP. In Section 9, Communication Plan includes: • Level 1 Strategies and Tactics: This section lists a number of strategies the Water Authority has used to guide successful drought response campaigns in the past and should be considered during Level 1 of the WSCP (up to 10 percent voluntary conservation)... • Level 2 Strategies and Tactics: In the event of a more severe supply shortage or demand management period that requires entering Level 2 of Department of Water Supply Contingency Plan Appendix A 121